Paintball Marker with Mode Selector

ABSTRACT

A paintball marker that includes both a mechanical firing mode and an electronically-assisted firing mode. In the mechanical firing mode, the marker launches projectiles without the aid of electronics and therefore does not require an energy source, such as batteries. In the electronically-assisted firing mode, an electronic circuit initiates launching of projectiles. A mode selector is provided that allows a user to select between the mechanical firing mode and the electronically-assisted firing mode.

RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application Ser. No. 61/393,097 and is a continuation-in-part of U.S. application Ser. No. 12/133,661, filed Jun. 5, 2008, which claimed the benefit of U.S. Provisional Application Ser. No. 60/942,144, filed on Jun. 5, 2007 and was a continuation-in-part application of U.S. application Ser. No. 12/016,370 (now U.S. Pat. No. 7,699,047), filed Jan. 18, 2008, which claimed priority to U.S. Provisional Application Ser. No. 60/880,989, filed on Jan. 18, 2007. The entire disclosure of these applications are hereby incorporated by reference.

TECHNICAL FIELD

The present invention relates generally to paintball markers, and like devices for firing frangible projectiles. In particular, this invention relates to a paintball marker that can selectively fire in either a mechanical firing mode or an electronically-assisted firing mode.

BACKGROUND

Paintball is a popular sport in which opposing sides attempt to seek out and “shoot” one another with paintballs. Players use paintball markers (also known as paintball guns) to propel the paintballs with compressed gas or combustible fuel. The paintballs are designed to break upon impact and leave a visible mark.

Since paintball games often simulate combat, paintball markers that resemble military equipment are desirable to increase the realism of the experience. For example, paintball markers have been modified to resemble assault rifles, sniper rifles, etc. In some cases, however, such modifications can be difficult to install and remove. Moreover, the modifications may detract from the marker's functionality and reliability.

SUMMARY

According to one aspect, the invention provides a paintball marker with a receiver and a barrel extending from the receiver. The marker includes a valve arrangement configured to selectively vent gas to propel a projectile out of the barrel. A mode selector may be provided to switch between a mechanical firing mode and an electronically-assisted firing mode. The marker includes a trigger that is movable between a neutral position and a firing position. A mechanical launch assembly is provided that may actuate launching of a projectile responsive to the trigger moving to the firing position without electronic assistance. The marker may also include an electronic circuit configured to actuate launching of a projectile responsive to the trigger moving to the firing position. When the mode selector is in the mechanical firing mode, the mechanical launch assembly actuates launching of a projectile. When the mode selector is in the electronically-assisted firing mode, the electronic circuit actuates launching of a projectile.

In one embodiment, a mechanical linkage is movable between a first position away from the valve arrangement and a second position that actuates the valve arrangement. The mechanical linkage actuates the valve arrangement responsive to the trigger moving to the firing position when the mode selector is in the mechanical firing mode. The electronic circuit initiates actuation of the valve arrangement responsive to the trigger moving to the firing position when the mode selector is in the electronically-assisted firing mode. For example, the electronic circuit may include a linear actuator configured to move to actuate the valve arrangement by energizing the linear actuator responsive to the trigger moving to the firing position when the mode selector is in the electronically-assisted firing mode.

Embodiments are contemplated in which the mode selector includes a notch dimensioned to receive a tip extending from the trigger. The notch is aligned with the tip when the mode selector is in the mechanical firing mode such that the tip is in registry with the notch when the trigger moves to the firing position. In a safety mode, however, the notch is not aligned with the tip to block the trigger from moving to the firing position. In another embodiment, a magnet may be associated with the mode selector and a magnetic sensor could be provided that is configured to detect the magnet when the mode selector is in the electronically-assisted firing mode, but not when the mode selector is in the mechanical firing mode.

Additional features and advantages of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of the illustrated embodiment exemplifying the best mode of carrying out the invention as presently perceived. It is intended that all such additional features and advantages be included within this description and be within the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The following description references the attached drawings which were given as non-limiting examples only, in which:

FIG. 1 is a perspective view of an example paintball marker constructed according with an embodiment of the present invention;

FIG. 2 is an exploded view of the example paintball marker shown in FIG. 1;

FIG. 3 is a left side view of the example paintball marker shown in FIG. 1;

FIG. 4 is a detailed view of the grip assembly for paintball marker shown in FIG. 1;

FIG. 5 is a right side view of the example paintball marker shown in FIG. 1;

FIG. 6 is a rear view of the example paintball marker shown in FIG. 1;

FIG. 7 is a front view of the example paintball marker shown in FIG. 1;

FIG. 8 is a top view of the example paintball marker shown in FIG. 1;

FIG. 9 is a bottom view of the example paintball marker shown in FIG. 1;

FIG. 10 is a detailed perspective view of the forestock shown in the example paintball marker of FIG. 1;

FIG. 10A is an exploded view of the forestock shown in FIG. 10;

FIG. 11 is a detail perspective view of an alternative forestock that may be used with the example paintball of FIG. 1;

FIG. 12 is a perspective view of an example tool box constructed in accordance with the embodiment of the invention in which the tool box is in an open position to show items disposed therein;

FIG. 13 is a side cross-sectional view showing the first and second supply lines in the example paintball marker of FIG. 1;

FIG. 14 is a side cross-sectional view showing the second supply line portion of the example paintball marker shown in FIG. 1, with an example rear stock attached to the marker;

FIG. 15 is a cross-sectional view of the example paintball marker shown in FIG. 14, with a cross-sectional view of an example rear stock attached to the marker;

FIG. 16 is a cross-sectional view of the example paintball marker shown in FIG. 15, with the rearstock detached from the marker;

FIG. 17 is a detailed perspective view of a portion of a receiver according to an alternative embodiment;

FIGS. 18A-18C show example rear stocks that may be attached to the marker;

FIGS. 19A-19E show example forestocks that may be attached to the marker;

FIGS. 20A-20E show example tool boxes that resemble magazines;

FIGS. 21A-21D show example front sights and handles that may be connected to the marker;

FIG. 22 shows an example vertical handle that may be connected to the marker;

FIG. 23 shows an example grip assembly according to an alternative embodiment;

FIG. 24 shows a cross-sectional view of the example grip assembly of FIG. 23;

FIG. 25 is a detailed cross-sectional view of the example grip assembly;

FIG. 26 is a detailed cross-sectional view of the grip assembly;

FIG. 27 is a schematic view showing possible inputs and outputs for the controller;

FIG. 28 is a left side view of an example paintball marker according to another embodiment in the safe mode;

FIG. 29 is a right side view of the example marker shown in FIG. 28;

FIG. 30 is a left side view of the example marker shown in FIG. 28 with a portion of the body removed to show internal components;

FIG. 31 is a detailed view of the marker shown in FIG. 30 in safe mode;

FIG. 32 is a left side view of the marker shown in FIG. 28 in the mechanical firing mode;

FIG. 33 is a left side view of the marker shown in FIG. 32 in the mechanical firing mode with a portion of the body removed to show internal components, including the trigger in a relaxed position;

FIG. 34 is a detailed view of the marker shown in FIG. 33 with the trigger in a relaxed position;

FIG. 35 is a left side view of the marker shown in FIG. 33 with the trigger in a firing position;

FIG. 36 is a detailed view of the marker shown in FIG. 35 with the trigger in a firing position;

FIG. 37 is a left side view of the marker shown in FIG. 28 in the electronic firing mode;

FIG. 38 is a left side view of the marker shown in FIG. 37 in the electrical firing mode with a portion of the body removed to show internal components, including the trigger in a relaxed position;

FIG. 39 is a detailed view of the marker shown in FIG. 37 with the trigger in a relaxed position;

FIG. 40 is a left side view of the marker shown in FIG. 38 with the trigger in a firing position;

FIG. 41 is a detailed view of the marker shown in FIG. 40 with the trigger in a firing position;

FIG. 42 is a right side view of the marker shown in FIG. 32 in the mechanical firing mode with a portion of the body removed to show internal components;

FIG. 43 is a detailed view of the marker shown in FIG. 42 with the mode selector switch shown in phantom;

FIG. 44 is a detailed view of the marker shown in FIG. 28 showing a port configured to receive a pressure gauge;

FIG. 45 is a detailed view of the marker shown in FIG. 29 showing a velocity adjustment mechanism; and

FIG. 46 is a side cross-section view of the marker shown in FIG. 45 showing internal components related to the velocity adjustment mechanism.

Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein are illustrative, and are not to be construed as limiting the scope of the invention in any manner.

DETAILED DESCRIPTION OF THE DRAWINGS

FIGS. 1-9 illustrate an example paintball marker 100 constructed according to an embodiment of the present invention. The invention could be implemented in a manual, semi-automatic, or automatic marker, even though a semi-automatic marker is shown for purposes of illustration. It should be appreciated that the marker 100 could use a variety of propellants to propel paintballs (or other projectiles) from the marker 100. The term “propellant” is broadly intended to encompass both compressed gas, such as carbon dioxide and nitrogen, as well as combustible fuel, such as propane, butane, and methylacetylene-propadiene (“MAPP”).

In the example shown, the marker 100 includes a barrel 102 through which projectiles may be propelled. As shown, the barrel 102 is coupled with a receiver 104, which defines an interior cavity dimensioned to house internal components of the marker 100. As used herein, the term “coupled” is broadly intended to encompass both direct and indirect connections. Typically, the barrel 102 includes external threads that may be received by internal threads in the receiver 104. By way of other examples, the barrel 102 may attach to the receiver 104 with an interference fit, frictional fit, or unitary formation. The receiver 104 may be formed from a variety of materials, such as aluminum, stainless steel, magnesium, or composites. In embodiments in which the receiver 104 is made of magnesium, it has been found that the production molds last substantially longer than that of aluminum. In some embodiments, the receiver 104 may have a clamshell-type body.

In the embodiment shown, the marker 100 includes a forestock 106. As best seen in FIGS. 10 and 10A, the forestock 106 may include a bore 107 dimensioned to receive the barrel 102. Preferably, the forestock 106 may be detachably coupled to the receiver 104. In the example shown, a first pin 108 and a second pin 110 extend through holes 111 in the forestock 106 and holes 113 in the receiver 104 (FIG. 2), thereby coupling the forestock 106 to the receiver 104. In this example, the forestock 106 may be detached from the receiver 104 by removing the pins 108 and 110 and sliding the forestock 106 off the barrel 102. Conversely, a user may mount the forestock 106 to the marker 100 by sliding the forestock 106 over the barrel 102 such that the holes 111 in the forestock 106 and the holes 113 in the receiver 104 are aligned. The pins 108 and 110 may then be moved through the forestock 106 and receiver 104 to couple the forestock 106 to the receiver 104. As best seen in FIG. 7, the pins 108 and 110 may include a bias member 105 to prevent accidental removal of the pins 108 and 110. Although the first pin 108 and second pin 110 are shown for purposes of illustration, it should be appreciated that other quick connections may be used to couple the forestock 106 to the receiver 104.

In some cases, the forestock 106 may be associated with a barrel adapter 109. The barrel adapter 109 (best seen in FIG. 10A) allows a user to configure the marker 100 with barrels of different diameters. Consider a situation in which a user desires to use barrels with either a ⅞ inch diameter or a 1 inch diameter. The bore 107 could be dimensioned to receive the 1 inch barrel. If the ⅞ inch barrel is desired to be used, the user would place the barrel through the adapter 109. In this example, the opening in the adapter 109 would be dimensioned to receive the barrel, which is ⅞ inches in this example. The outer diameter of the adapter 109 would be dimensioned to be received by the bore 107, or 1 inch in this example. As shown, the adapter is received in a recess 115 formed in the forestock 106.

In some embodiments, the forestock 106 may include a bottom rail 112, a side rail 114, and/or a top rail 116 for mounting accessories, such as sites, scopes, etc. In the example shown, the marker 100 includes a front site 118 mounted to the top rail 116. It should be appreciated that the marker 100 could be customized with other types of sites, such as those shown in FIGS. 21A-21B. By way of a further example, a vertical handle, such as shown in FIG. 22, could be attached to the bottom rail 112.

Preferably, the user may select between a plurality of interchangeable forestocks, which each allow a suitable quick connection with the receiver 104 to customize the marker 100. For example, if the receiver 104 includes holes 113, each of the forestocks could include holes 111 to allow a quick connection using pins 108 and 110. Example forestocks that could be used with the marker 100 are illustrated in Figures 19A-19E. It should be appreciated that other styles of forestocks could be used with the marker 100.

In some embodiments, the marker 100 may include a tool box 120 for storing one or more items. In this embodiment, the tool box 120 is coupled with and extends from the receiver 104. Typically, the tool box 120 is detachably coupled with the receiver 104; however, the tool box 120 could be integral with or permanently affixed to the receiver 104. Embodiments are also contemplated in which the tool box 120 could be an internal storage compartment in the receiver 104 that could be accessed by a user.

Preferably, the tool box 120 resembles a magazine that feeds projectiles into the receiver. Instead of feeding projectiles into the receiver 104, however, the tool box 120 would typically hold tools for maintaining the marker 100, including but not limited to hex wrenches or a tube of oil. As shown, the tool box 120 includes a slot 122 dimensioned to receive a first supply line 124. In other embodiments, the tool box 120 could include a connection for coupling the first supply line 124. Preferably, the first supply line 124 provides a source of compressed gas for a valve arrangement 178 within the marker 100 (see FIG. 13). In some cases, if the marker 100 were a combustible fuel powered marker, the first supply line 124 may provide a supply of fuel, such as propane, to a combustion chamber within the marker 100.

The tool box 120 may include an internal storage compartment for storing items, such as tools. In the example shown in FIG. 12, the tool box 120 includes a first side 130 and a second side 132 pivotally coupled with a bottom 134. Although the embodiment shown includes an open top, the tool box 120 may be entirely closed since projectiles are not fed into the receiver 104 from the tool box 120 in this embodiment.

As shown, the tool box 120 includes a first hinge 136 and a second hinge 138 that allow the first side 130 and second side 132 to pivot, respectively. In this example, the hinges 136 and 138 are living hinges, but separate hinges could be coupled with the sides 130 and 132 and bottom 134 in some cases. It should be appreciated that other pivotal connections could also be used. Although this example shows the tool box 120 hinged at the bottom 134, it should be appreciated that the tool box 120 could be hinged at the sides 130 and 132 or the top or not hinged at all.

In some cases, the tool box's 120 interior may include tool holders configured to receive a specific arrangement of tools (or other items). In the example shown, the tool box 120 includes slots 140 dimensioned to receive hex wrenches 142 in the first side 130 of the tool box 120. The second side 132 includes complementary ridges 144 configured to close the slots 140 when the tool box 120 is closed, thereby holding the wrenches 142 in place. In this example, the first side 130 of the tool box 120 also includes an area for a tube of oil 146 that could be used to maintain the marker 100. It should be appreciated that the internal cavity of the tool box 120 could be configured to hold a variety of tools, accessories, or other items.

In the example shown, the tool box 120 includes an opening 143 dimensioned to receive an internal latch 145 when the tool box 120 is closed. In this example, the tool box 120 includes an opening 147 dimensioned to receive a latch mechanism in a tool box mount 121 for detachably coupling the tool box 120 to the receiver 104.

Referring again to FIGS. 1-9, the marker 100 preferably includes a tool box mount 121 configured to receive the tool box 120. As shown, the tool box mount 121 includes a release button 123 (best seen in FIG. 5) that controls a latch mechanism associated with the tool box mount 121. In the example shown, the latch mechanism engages the opening 147 in the tool box 120 to selectively release the tool box 120 from the tool box mount 121. It should be appreciated that a variety of mechanisms could be used to detachably couple the tool 120 with the tool box mount 121, such as an interference fit, frictional fit, magnets, etc.

In the example shown (as best seen in FIG. 2), the tool box mount 121 is coupled with the receiver 104 using an interference fit. As shown, the receiver 104 includes ridges 129 that extend from the receiver 104. The top portion of the tool box mount 121 includes grooves 125 formed in a flange 127 that are configured to receive the ridges 129. To couple the tool box mount 121 to the receiver 104, the user would align the grooves 125 with the ridges 129, such that the ridges 129 extend through the grooves 125. The tool box mount 121 may then be moved toward the barrel 102 in the example shown such that the flange 127 creates an interference fit with the ridges 129. The user may detach the tool box mount 121 by moving the tool box mount 121 in an opposite direction (away from the barrel 102 in this example) until the ridges 129 are aligned with the grooves 125. Other mechanisms, such as a frictional fit, could also be used to couple the tool box mount 121 with the receiver 104.

Preferably, a plurality of interchangeable tool boxes and tool box mounts may be provided to allow customization of the marker 100. Typically, each of the tool boxes includes an interior cavity for storing items, such as tools. Examples of tool boxes that resemble magazines of types used for feeding projectiles into the receivers of actual firearms are shown in FIGS. 20A-20E. It should be appreciated that other styles could also be provided. The tool box 120 may be formed from a variety of materials, including but not limited to plastic, aluminum and magnesium.

The marker 100 may include a grip assembly 146. In the example shown, the grip assembly 146 includes a grip 148 that is dimensioned for a user to grasp. The grip assembly 146 includes a trigger 150 for actuation by the user to fire the marker 100. The trigger 150 may mechanically and/or electrically selectively fire the marker 100. In the example shown, the trigger 150 is surrounded by a trigger guard 152. As shown, the marker 100 includes a safety 154. In the position shown in FIG. 1, the safety 154 prevents the marker 100 from firing; if moved to a fire position, the safety 154 allows the marker 100 to fire projectiles. Although the example shown includes a lever for actuating the safety 154, it should be appreciated that other forms of safety could be used.

In some embodiments, the grip assembly 146 may be detachably coupled with the receiver 104. As shown, the grip assembly 146 includes a hole 155 that is alignable with a hole 157 in the receiver 104 through which a pin 156 may be received. By removing the pin 156 (and the lower pin 170), the grip assembly 146 may be detached from the receiver 104. In the example shown, the lower portion of the grip 148 includes an adaptor 158 configured to receive a propellant source, such as a canister of carbon dioxide or nitrogen. As discussed below, the adaptor 158 and first supply line 124 are optional, depending on whether the rear stock attached to the receiver 104 includes an internal passageway 186 for connection to a propellant source (See FIGS. 15-16).

In the example shown, a picatinny rail 160 is attached to a top portion of the receiver 104. The picatinny rail 160 may be used to add risers, sites, handles, or other items to the receiver 104. As shown, a rear sight 161 is coupled to the picatinny rail 160. By way of another example, carry handles, such as shown in FIGS. 21C-21D, could be mounted to the picatinny rail 160.

In the embodiment shown, the marker 100 includes a hopper 162 for holding a plurality of projectiles to be fired. As shown, the hopper 162 includes a lid 164 pivotably mounted to the hopper 162 to selectively open/close an opening to the hopper 162. Preferably the hopper 162 has a low profile to reduce the target area of the user and allow a better line of site to fire the marker 100. By way of example only, the hopper 162 may have a length that is more than three times its height in some cases (see FIG. 3). As shown, the hopper 162 is offset from the receiver 104 to allow a better line of site for the user to fire the marker 100. However, the hopper 162 could be coupled to the receiver 104 on the top (e.g., picatinny rail 160) or other location of the receiver 104.

In some cases, the hopper 162 may be coupled with a feed mechanism 166 that feeds projectiles into the receiver 104. An example feed mechanism that could be used with the marker 100 is shown in U.S. Pat. No. 6,739,323, which is incorporated herein by reference.

Instead of a separate feed mechanism, the hopper 162 may include an integral feed mechanism in some embodiments. For example, the hopper 162 may be an agitating or force-fed hopper. In some cases, the projectiles may be gravity fed into the receiver 104. For example, the lower portion of the hopper 162 may include a passage that is coupled directly with the receiver 104, so that projectiles may be fed one-by-one through the passage into the receiver 104. In some embodiments, the receiver 104 (or other portion of the marker 100) may include an internal cavity for receiving a plurality of projectiles. By way of another example, the receiver 104 may be stick fed with projectiles.

In the embodiment shown in FIGS. 1-9, the marker 100 includes a detachable end cap 168. If the user desires to have a rear stock, the end cap 168 may be removed and a rear stock coupled to the receiver 104 (see FIGS. 14-16). In the example shown, pins 170 pass through projections 172 (see FIGS. 2 and 13) in the end cap 168 and holes in the receiver 104 and grip assembly 146. Removal of the pins 170 allows the user to detach the end cap 168 from the receiver 104. In the example shown, the end cap 168 includes an optional ring 174 that user may grasp to remove the end cap 168. As discussed below, a plurality of interchangeable rear stocks may be substituted for the end cap 168 to customize the marker 100. Preferably, each of the rear stocks include similarly arranged holes such that the rear stocks may be attached to the receiver 104 using the pins 170. Examples of rear stocks that could be used with the marker 100 are shown in FIGS. 18A-18C.

Referring now to FIG. 13, there is shown a detailed cross-sectional view of the marker 100. As shown, a sear 188 is interposed between the trigger 150 and a 190. In this example, the sear 188 is disposed on pivot pin 192 and is biased by spring 194 toward engagement of the rear bolt 190. When the marker 100 is in the cocked position, actuation of the trigger 150 releases the rear bolt 190 from the sear 188. In the example shown, the marker 100 is in the cocked position when the rear bolt 190 is in a rearward position in which the sear 188 prevents forward movement of the rear bolt 190. In the example shown, the marker 100 moves to a discharge position by releasing of the rear bolt 190 from the sear 188 due to user actuation of the trigger 150. It should be appreciated that other trigger assemblies, both mechanical and electrical, may be suitable to selectively fire the marker 100 and are contemplated herein.

In the example shown, the rear bolt 190 moves under the bias of drive spring 196 upon actuation of the trigger 150. A pin 198 is disposed within the spring 196 in the example shown. The rear bolt 190 is coupled to a front bolt 200 via a linkage arm 202 in the example shown. This causes concomitant movement of the front bolt 200 with the movement of the rear bolt 190. The front bolt 200 is adapted to push a projectile into the barrel 102 during firing.

The bias of drive spring 196 on rear bolt 190 causes rear bolt 190 to depress an impact pin 204 on the valve assembly 178, which causes the valve assembly 178 to release a quantity of compressed gas, thereby causing a projectile to be propelled out the barrel 102. Another quantity of compressed gas may be released on the side of valve assembly 178 in which the rear bolt 190 is disposed, which will recoil the rear bolt 190 to the cocked position. Example valve arrangements and firing mechanisms that could be used are shown and described in U.S. Pat. Nos. 4,189,609, 5,722,383, and 6,550,468, which are each hereby incorporated by reference.

In the embodiment shown, a second supply line 176 can be seen. Preferably, the marker 100 may be configured such that either the first supply line 124 or the second supply line 176 may supply the valve arrangement 178 with a propellant with which the projectiles may be fired. Preferably, the first supply line 124 or the second supply line 176 provides compressed gas, such as carbon dioxide or nitrogen, to the valve arrangement 178. As discussed above, however, the supply lines 124 or 176 could provide fluid communication with a supply of combustible fuel in some embodiments.

In this example, the marker 100 includes a coupling 180 associated with the first supply line 124. Typically, the user would choose between the first supply line 124 and the second supply line 176. If the user decided to use the first supply line 124, the user would put the first supply line 124 and coupling 180 associated with the first supply line 124 into the receiver. This would supply compressed gas to the valve arrangement 178 via the first supply line 124. A passageway is defined in the receiver 104 for receiving the second supply line 176. Preferably, the passageway extends from the valve arrangement to the rear portion of the receiver 104 so that the second supply line 176 may be aligned with a passage with a rear stock which is in fluid communication with a supply of compressed gas. If the user desired to use the second supply line 176, the first supply line and associated coupling 180 would typically be removed and the second supply line and an associated coupling 180 inserted into the passageway. The coupling 180 provides the valve arrangement 178 with a supply of compressed gas from the first supply line in the example shown.

In some cases, the coupling 180 may be configured to receive both the first supply line 124 and the second supply line 176. For example, the coupling 180 may include a first check valve (not shown) at the inlet of the first supply line 124 into the coupling 180 and a second check valve (not shown) at the inlet of the second supply line 176 into the coupling 180. With this arrangement, the inlets would only be open due to the supply of compressed gas to open a respective check valve. It should be appreciated that other mechanisms, both mechanical and electrical, could be used to selectively supply the valve arrangement 176 with a flow of compressed air from either the first supply line 124 or the second supply line 176. In some embodiments, the coupling 180 could be configured to supply compressed air from both the first supply line 124 and the second supply line 176. In the example shown in FIG. 13, the second supply line 176 does not supply compressed gas to the valve arrangement 178 due to the end cap 178 being connected to the receiver 104. As discussed below, the second supply line 176 may continue flow through the rear stock, which may be connected with a source of compressed gas.

FIG. 14 shows an example in which a rear stock 182 has been coupled with the receiver 104. In the example shown, the rear stock 182 includes a projection 184 with holes dimensioned to receive the pins 170. Accordingly, a user may customize a marker 100 with a plurality of interchangeable rear stocks that may be coupled to the receiver 104. Examples of rear stocks that may be coupled to the marker 100 are shown in FIGS. 18A-18C. It should be appreciated that other types of rear stocks could also be provided.

FIGS. 15-16 show the example embodiment of FIG. 14 with the rear stock 182 shown in sectional view. As shown, the rear stock 182 includes a passageway 186 that is in fluid communication with the second supply line 176. The passageway 186 may be in fluid communication with the supply of compressed gas (or other propellant), thereby providing compressed gas to the valve arrangement 178. In some cases, the rear stock 184 may include a recess 205 for receiving an end of the pin 198.

FIG. 17 shows the right half of an example receiver 104. Although the example receiver 104 shown includes holes that could be used for quick connections of rear stocks, fore stocks, etc., this receiver 104 could also be used with a marker without such customization features. In some cases, the valve assembly 178 may be tapped to supply compressed gas for other functions associated with the marker 100. For example, the feed mechanism 166 could be pneumatically actuated with compressed gas tapped off the valve assembly. For example, U.S. Pat. No. 6,739,323 shows a feed mechanism that may be pneumatically actuated. By way of another example, U.S. Pat. No. 6,550,468 shows a trigger assist that may be pneumatically actuated. In receivers formed by two halves that are connected together, such as the example half shown, gas that is tapped off the valve assembly 178 tends to escape through the seam between the halves of the receiver 104.

In the example shown, the receiver 104 includes a groove 206 dimensioned to receive a seal 208, such as an O-ring. Preferably, the groove 206 is substantially elliptical is shape, which retains the seal 208 without a fastener or adhesive. The groove 206 and seal 208 are disposed within the receiver 104 preferably adjacent the portion of the valve assembly 178 that is tapped to prevent escape of gas through the seam in the receiver 104. As shown, a first outlet port 210 and a second outlet port 212, which are associated with tapped portions of the valve assembly 178, are disposed within the groove. Additionally outlet ports (or a single outlet port) may be provided.

FIGS. 23-27 show a grip assembly 214 according to an alternative embodiment, which uses electronics (at least in part) to actuate firing of the marker 100. Referring to FIG. 23, the grip assembly 214 includes a grip 216 that is dimensioned for a user to grasp. As discussed below, the electronics (and related components) for controlling actuation of the marker 100 are disposed within the grip 216. The grip assembly 214 includes a trigger 218 for actuation by the user to fire the marker 100. In the example shown, the trigger 218 is surrounded by a trigger guard 220. As shown, the lower portion of the grip 216 includes an adaptor 222 configured to receive a propellant source, such as a canister of carbon dioxide or nitrogen. As discussed above, the adaptor 222 may be optional, depending on the type of rear stock attached to the receiver 104.

In this example, the grip 216 includes a battery door 224 that may be removed to provide access to a battery associated with the electronics (and possibly other components internal to the grip 216). Although the battery door 224 extends longitudinally along the rear portion of the grip 216 in the example shown, it should be appreciated that the battery door 224 could be located elsewhere on the grip 216 depending on the circumstances. As shown, the battery door 224 includes a clasp 226 for detachable coupling with the battery door 224. It should be appreciated that other mechanisms could be used for selectively opening/closing the battery door 224 to the rear portion of the grip 216.

In the embodiment shown, the grip assembly 214 includes a mode selector 226 for selecting among multiple firing modes. The term “firing mode” is intended to be broadly construed to include a safety position in which the marker 100 is prevented from firing, as well as modes that in the marker 100 are allowed to fire. In this example, the mode selector 226 includes a lever 228 for rotating the mode selector 226 between different firing modes. In the example shown, a mode indicator 230 aligns with the selected firing mode. As shown, the mode indicator 230 specifies that a first mode 232 is selected. By rotating the mode selector 226, a second mode 234 or a third mode 236 could be selected. As shown, an end of the lever 228 defines an opening 238 for receiving detents 240 to retain the mode selector 226 in the selected mode. Although a rotary mode selector 226 is shown for purposes of example, it should be appreciated that other non-rotating mode selectors, such as a linearly-moving lever, could be used. Although the embodiment shown includes three modes, it should be appreciated that embodiments are contemplated with only two modes; additionally, embodiments are contemplated with more than three modes.

FIGS. 24-26 show cross-section views of the example grip assembly 214 shown in FIG. 23. Unlike the embodiment described previously with respect to FIG. 13, there is no contact between the trigger and sear in the embodiment shown. Instead, a controller circuit electronically detects movement of the trigger and actuates movement of the sear to fire the marker 100. In some embodiments, the manner by which the controller circuit controls movement of the sear could depend upon the firing mode and/or other firing characteristics selected by the user.

In the embodiment shown, a sear 242 pivots about a pivot pin 244 and the rear section (right portion in FIG. 24) is urged upward (in this example) by a biasing member 246. A depending portion 248 of the sear 242 extends toward a position adjacent a linear actuator 250, such as a solenoid. In the embodiment shown, the depending portion 248 is unitary with the sear 242; however, embodiments are contemplated in which the depending portion 248 and the sear 242 could be separate components that are coupled together. As shown, a rod 252 of the linear actuator 250 moves between a retracted position and an extended position (shown). When the rod 252 moves to the extended position, this pushes the depending portion 248 away from the linear actuator 250, which rotates the sear 242 (clockwise as shown) to fire the marker 100. For example, this movement of the sear 242 could release the rear bolt 190, which causes firing of the marker 100. In other embodiments, such as using combustible gas, this movement of the sear 242 could be used to initiate ignition in a combustion chamber.

A controller 254 controls movement of the rod 252 responsive to movement of the trigger 218. The controller 254 could be a microcontroller, for example, that is programmed to perform the functions described herein. Other electronic components, such as a capacitor 255, could be associated with the controller. FIG. 27 is a simplified schematic representation showing possible inputs and outputs for the controller 254, according to an embodiment, which will be described below.

Referring again to FIGS. 24-26, the controller 254 determines when the trigger 218 is pulled by using one or more proximity sensors to detect the position of the trigger 218. Although the embodiment described below uses magnetic sensors, embodiments are contemplated in which other types of proximity sensors could be used, including but not limited to optical sensors, capacitive sensors, and inductive sensors.

In the example shown, a magnet 256 is associated with the trigger 218 that moves concomitant with the trigger 218. As shown, the magnet 256 is embedded in the trigger 218; however, embodiments are contemplated in which the magnet could be coupled with the trigger 218, such as using a fastener or adhesive. One or more magnetic sensors, such as Hall effect sensors, may be provided to detect the trigger's 218 position by detecting the magnetic flux associated with the magnet 256.

For example, in the embodiment shown, the magnet 256 is oriented to move between a first trigger detector 258 and a second trigger detector 260 when the trigger is pulled (as best seen in FIG. 26). With this arrangement, the controller 254 actuates the rod 252 to the extended position when both the first trigger detector 258 and the second trigger detector 260 sense the magnetic field of the magnet 256. Typically, the first trigger detector 258 and the second trigger detector 260 are Hall effect sensors. With such an arrangement, the trigger detectors 258 and 260 will switch on (output changing from low to high or visa versa) when the magnetic flux density increases above a threshold level, which indicates to the controller 254 that the trigger 218 has been pulled. In response, the controller 254 will actuate the rod 252 to the extended position, thereby moving the sear 242. When the magnetic flux density decreases below a threshold level, the trigger detectors 258 and 260 will switch off (output changing from high to low or visa versa), which indicates to the controller 254 that the trigger 218 has been released. The controller 254 will move the rod 252 to the retracted position. Typically, the rod 252 is held in the extended position for a pre-determined period of time, not dependent on the amount of time the trigger 218 is pulled.

In some embodiments, at least one of the first trigger detector 258 and the second trigger detector 260 are unipolar Hall effect sensors. By using a unipolar Hall effect sensor, safety advantages are provided because a specific magnetic orientation would be required to fire the marker 100, which reduces the possibility that external magnets would inadvertently cause the marker 100 to fire. For example, consider an example in which the first trigger detector 258 is a unipolar Hall effect sensor that switches on in response to a south pole and the second trigger detector 260 is an omnipolar Hall effect sensor that switches on in response to either a north pole or a south pole. In this example, the magnet 256 would be oriented on the trigger 218 such that the south pole would be exposed to the first trigger detector 258 when the user pulls the trigger 218. With this type of arrangement, the magnet 256 could include a pole indicator printed on a side, such as text or a graphic, for maintenance purposes if the user needed to replace the magnet 256 so that the correct orientation could be determined.

In some embodiments, a magnet 262 is associated with the mode selector 226 that moves concomitant with rotation of the mode selector 226. The magnet 262 may be embedded in the mode selector 226 coupled with the mode selector 226 using a fastener, adhesive, or otherwise associated with the mode selector 226. In the embodiment shown, a mode detector 263 is provided to detect the position of the mode selector 226. For example, the mode detector could be a magnetic sensor, such as a Hall-effect sensor, to detect the mode selector's 226 position by detecting the magnetic flux associated with the mode selector 226. This allows the controller 254 to determine the firing mode selected by the user. Other embodiments are contemplated in which other types of electronics could be used to select the firing mode, including but not limited to tactile switches, optical-electronics, momentary switches, push-button switches, rotary switches, and capacitive sensors.

In the embodiment shown, the grip assembly 214 includes a user interface 264 and a status indicator 266 on an end of the grip 216 opposite the battery door 224. As shown, a first opening 268 provides access to the user interface 264, while a second opening 270 exposes the status indicator 266. In the example shown, the user interface 264 is a momentary push-button switch; however, other embodiments are contemplated in which other suitable switches, knobs, etc., could be used. Although the status indicator 266 will be described herein as a LED with multiple colors (e.g., red/green/orange), it should be appreciated that other mechanisms, such as audible alerts, a LCD display, etc., would be suitable to provide information to the user regarding the marker 100.

The user interface 264 allows the user to turn off the electronics. For example, pushing the user interface 264 for greater than a specific time, such as two seconds, could turn off the electronics. The status indicator 266 could be used to let the user know that the electronics is turned off. For example, the status indicator could light up red when the user has pushed the user interface for a sufficient period to turn off the electronics.

Additionally, the user interface 264 can be used to adjust the manner by which the marker 100 fires. For example, the user interface 264 could allow the user to select the default firing mode associated with modes 234 and 236. Consider an example in which the user pushes the user interface 264 for approximately 0.5 seconds (or another predetermined time) and releases the user interface 264, then the status indicator 266 starts flashing orange (or other color). In this example, the status indicator could flash a number of times corresponding with default firing mode. By way of example only, the firing modes could be: (1) safe three-round burst—pulling the trigger three times in less than a second will result in a 3-shot burst; (2) safe full-auto—pulling the trigger three times in less than a second will result in full-automatic firing; (3) auto-response—firing upon both pulling and releasing the trigger; (4) turbo mode—pulling the trigger three times in less than one second will result in full-automatic firing at a rate of 15 bps (or other pre-determined rate); (5) semi-auto—firing each time the trigger is pulled. In this example, the user will know that the marker 100 is set to the safe full-auto mode as the default firing mode if the status indicator 266 flashes twice. It should be appreciated that the firing modes listed above are provided for example purposes only and are not intended to limit the types or number of firing modes that could be used.

In some embodiments, the user can change multiple characteristics by which the marker 100 fires. Consider an example in which four characteristics of the marker 100 could be changed: (1) dwell—the amount of time that the linear actuator 250 is powered during a trigger pull; (2) debounce—the minimum amount of time between accepted trigger pulls; (3) rate-of-fire; and (4) default firing mode. By way of example only, the user could enter a programming mode to change one or more of these characteristics by simultaneously pushing the user interface 264 and the trigger 218 for a predetermined period of time.

Once in the programming mode, the status indicator 266 could indicate the particular characteristic selected to be changed. By way of example only, the status indicator 266 could indicate the selected characteristics as follows: (1) solid red—dwell; (2) solid green—debounce; (3) flashing green—rate-of-fire; and (4) alternating red/green—default firing mode. In some embodiments, the user could cycle between these characteristics using the trigger 218. In this example, the status indicator would cycle from solid red (dwell) to solid green (debounce) when the trigger 218 is pulled and then from solid green (debounce) to flashing green (rate-of-fire) when the trigger 218 is pulled again and then from flashing green (rate-of-fire) to alternating red/green (default firing mode) if the trigger 218 is pulled again. To select a particular characteristic to change, the user could pull and hold the trigger for a predetermined time, for example. When this is done, the status indicator 266 could flash the current value selected for the characteristic. If the user selected debounce, for example, the status indicator 266 could flash 30 times if the debounce value had been set to 30 milliseconds.

To enter a different value, the user could pull the trigger the number of times needed to select the desired value. Consider an example in which the user selected the dwell characteristic to change. In this example, the default dwell value could be 8 milliseconds and may be adjusted between 2-20 milliseconds. If the user wanted to change the dwell value to 10 milliseconds, the user would pull the trigger 10 times. Once the user has entered the desired value, the status indicator 266 could flash (or otherwise indicate) that the value is accepted and stored.

Consider another example in which the user selected the debounce value to change. In this example, the default debounce value could be 52 milliseconds and may be adjusted between 25-65 milliseconds. If the user wanted to change the debounce value to 25 milliseconds, for example, the user would pull the trigger 25 times. Once the user has entered the desired value, the status indicator 266 could flash (or otherwise indicate) that the value is accepted and stored.

Consider a further example in which the user selected the rate-of-fire value to change. In this example, the default rate-of-fire value could be 13 balls per second and may be adjusted between 8-30 balls per second. If the user wanted to change the rate-of-fire value to 20 balls per second, for example, the user would pull the trigger 20 times. Once the user has entered the desired value, the status indicator 266 could flash (or otherwise indicate) that the value is accepted and stored.

Consider another example in which the user selected the firing mode value to change. In this example, the firing mode value could be 2, which could correspond to safe full-auto. If the user wanted to change the firing mode to auto-response, which corresponds to a firing mode value of 3 in this example, the user would pull the trigger 3 times. Once the user has entered the desired value, the status indicator 266 could flash (or otherwise indicate) that the value is accepted and stored.

FIGS. 28-46 illustrate an example paintball marker 300 constructed according to another embodiment of the present invention. In this embodiment, the marker 300 can fire in either a mechanical firing mode or an electronically-assisted firing mode, depending on the firing mode selected by the user. FIGS. 32-35 show various views of the marker 300 in the mechanical firing mode and FIGS. 36-41 show various views of the marker 300 in the electronically-assisted firing mode. One advantage of this embodiment is the ability to continue firing the marker 300 in the mechanical firing mode even after the power source for the electronically-assisted firing mode is drained and can no longer sufficiently power the electronics.

FIG. 28 is a left side view of an example paintball marker 300. In this example, the marker 300 has three modes that can be selected by the user: a safe mode 302 that prevents the marker 300 from firing, a mechanical firing mode 306 in which a mechanical launch assembly actuates launching of projectiles without the aid of electronics, or an electrically-assisted firing mode 308, which could be programmed in a manner that changes various firing characteristics. The term “electronically-assisted firing mode” is intended to mean a firing mode in which an electronic circuit is used to initiate firing of a projectile. As shown in FIG. 28, the safe mode has been selected, which prevents the marker 300 from firing even if the trigger 304 is pulled. Although three modes are shown in this example, it should be appreciated that additional modes could be provided if desired. In the example shown, the marker 300 includes a mode selector 301 from which the user may select a desired mode. Although the mode selector 301 rotates between modes 302, 306, and 308 in the example shown, it should be appreciated that other manners of selecting a mode could be provided. Additionally, the order and position of the various modes could be changed if desired. Also in this view, a gauge port 310 (detailed view in FIG. 44) can be seen which allows a pressure gauge to be inserted to be received to provide a readout of internal pressure within the marker 300. Although pressure gauges associated with markers are known, an embodiment of the marker 300 allows the pressure gauge to be removed when not needed. A removable pressure gauge allows the marker 300 to be tested and for maintenance purposes. When not needed, the pressure gauge can be removed and replaced with a plug that prevents escape of gas so the marker is more rugged and authentic looking.

FIG. 29 is a right side view of the example marker 300 shown in FIG. 28. In this view, a velocity selector 312 extends from the right side of the receiver to allow a user to adjust the velocity from which the projectiles are propelled out of the marker 300. Although the velocity selector 312 is shown on the right side of the marker 300 in this example, it should be appreciated that it could be located in other positions on the marker 300. In this example, the user would rotate the velocity selector 312 in one direction for greater velocity while rotating it in the opposite direction to reduce the velocity of projectiles.

FIGS. 30 and 31 are left side views of the example marker shown in 28 with a portion of the body removed to show internal components. In this view, a portion of the valve arrangement 322 is shown. The valve arrangement 322 is actuated (i.e., opened to vent gas) using a lever 326 in this example. The lever 326 pivots about a pin 328 with a first arm 332 and a second arm 334. The first arm 332 is movable toward and away from an input valve 330. In this example, when the input valve 330 is actuated by the first arm 332 of the lever 326, this causes the valve arrangement 322 to vent a supply of compressed gas to propel a projectile. In this example, the lever 326 can be actuated in two ways, either mechanically (corresponding to the mechanical mode 306) or electronically (corresponding to the electronically-assisted mode 308).

When in the mechanical mode 306, the lever 326 is actuated using a cam surface 324 on the trigger 304. Movement of the trigger 304 (i.e., when the user pulls the trigger) causes movement of the cam surface 324 to rotate (counter-clockwise in this example) the lever 326 such that the first arm 332 actuates the input valve 330 (pushes the input valve 330 in this example). When in the electronically-assisted mode 308, a rod 336 of a linear actuator 338, such as a solenoid, moves between a retracted position and an extended position. When the user pulls the trigger 304, the rod 336 moves to the extended position, which pushes the second arm 334 of the lever 326 and rotates (counter-clockwise in this example) the lever 326. This rotation of the lever 326 causes the first arm 332 to actuate the input valve 330 (pushes the input valve 330 in this example) to vent gas and propel a projectile. In the embodiment shown, the mode selector 301 allows a longer trigger stroke in the mechanical mode than in the electronically-assisted mode. In other words, the mode selector 301 is configured to block the trigger from making as long of a stroke when the electronically-assisted mode is selected. This shorter trigger stroke prevents the cam surface 324 on the trigger from actuating the lever 326, which would result in a double shot—one shot from the electronically-assisted mode and the other from the mechanical mode.

In this view, a cross-section of the mode selector 301 can be seen. As shown in this example, the mode selector 301 includes a notch 314 that is dimensioned to receive a tip extending from the trigger 304. In this example, which shows the mode selector 301 in safe mode, the notch 314 is not aligned with the tip 316 of the trigger 304. This prevents the trigger 304 from being sufficiently pulled to trip the lever 326, thereby preventing firing of the marker 300 in safe mode.

FIGS. 32-34 show example views of the marker 300 from FIG. 28 in the mechanical firing mode 306. As discussed above, in this example, the mechanical firing mode allows the marker to fire projectiles without the aid of electronics. This allows the marker 300 to be fired even if the battery (or other energy source) is sufficiently drained to no longer power the electronics. In FIG. 34, it can be seen that the mode selector 301 has been rotated to the mechanical mode 306, which aligns the tip 316 with the notch 314 in the mode selector 301, thereby allowing the tip 316 to be received therein when the trigger 304 is pulled. An example trigger pull is shown in FIGS. 35-36. As best seen in FIG. 36, pulling the trigger 304 registers the tip 316 in the notch 314, which allows the cam surface 324 to move the first arm 332 of the lever 326 to actuate the input valve 330, thereby venting gas from the valve arrangement 322 to propel a projectile.

FIGS. 37-39 show example views of the marker 300 in the electronic-aided firing mode 308. As discussed above, the mode selector 301 is associated with a magnet 340 (best seen in FIGS. 42-43) that turns on the electronics when the mode selector 301 is positioned in the electronically-assisted mode 308 due to one or more magnetic sensors, such as Hall effect sensors, associated with the electronics. Even though the tip 316 is not aligned with the notch 314, pulling of the trigger 304 provides movement of one or more magnets 318 associated with the trigger 304 such that one or more magnetic sensors 320 can detect movement of the trigger 304 and actuate electronics to actuate the valve arrangement 322. FIGS. 40-41 show an example with the trigger pulled which causes the electronics to actuate the valve arrangement 322. As discussed above, detection by the magnetic sensors 320 causes the electronics to actuate the rod 336 of the linear actuator 338, which rotates the lever 326. This causes movement of the first arm 332, which actuates the input valve 330, thereby venting the valve arrangement 322 to propel a projectile. As discussed above, the electronics could be programmed to alter various firing characteristics.

FIGS. 45-46 show an embodiment of the velocity adjustment. In this example, the velocity selector 312 includes a threaded portion that causes linear movement of the velocity selector 312, which adjusts a spring 342 in the valve arrangement 322 to increase or decrease the spring strength, thereby adjusting the regulated pressure going into the valve arrangement 322.

Although the present disclosure has been described with reference to particular means, materials and embodiments, from the foregoing description, one skilled in the art can easily ascertain the essential characteristics of the invention and various changes and modifications may be made to adapt the various uses and characteristics without departing from the spirit and scope of the invention. 

1. A paintball marker comprising: a receiver; a barrel extending from the receiver; a valve arrangement configured to selectively vent gas to propel a projectile out of the barrel; a mode selector movable between a mechanical firing mode and an electronically-assisted firing mode; a trigger movable between a neutral position and a firing position; a mechanical launch assembly configured to actuate launching of a projectile without electronic assistance responsive to the trigger moving to the firing position; an electronic circuit configured to actuate launching of a projectile responsive to the trigger moving to the firing position; wherein the mechanical launch assembly actuates launching of a projectile when the mode selector is in the mechanical firing mode; and wherein the electronic circuit actuates launching of a projectile when the mode selector is in the electronically-assisted firing mode.
 2. The paintball marker of claim 1, wherein the mode selector rotates between the mechanical firing mode and the electronically-assisted firing mode.
 3. The paintball marker of claim 1, further comprising a magnet associated with and movable with the mode selector and a magnetic sensor configured to detect the magnet's position to determine whether the mode selector is in the electronically-assisted firing mode.
 4. The paintball marker of claim 1, wherein at least a portion of the mode selector extends from an external surface of the receiver.
 5. The paintball marker of claim 1, wherein the mode selector is further movable to a safety mode, wherein the mode selector prevents the trigger from moving to the firing position when in the safety mode.
 6. The paintball marker of claim 1, further comprising a gauge port defined on an external surface of the receiver that is dimensioned to receive a portion of an external pressure gauge configured to measure an internal pressure of the paintball marker and a plug that blocks fluid communication out of the gauge port.
 7. A paintball marker comprising: a receiver; a barrel extending from the receiver; a valve arrangement configured to selectively vent gas to propel a projectile out of the barrel; a mode selector movable between a mechanical firing mode and an electronically-assisted firing mode; a trigger movable between a neutral position and a firing position; a mechanical linkage movable between a first position away from the valve arrangement and a second position that actuates the valve arrangement, wherein the mechanical linkage actuates the valve arrangement responsive to the trigger moving to the firing position when the mode selector is in the mechanical firing mode; and an electronic circuit configured to initiate actuation of the valve arrangement responsive to the trigger moving to the firing position when the mode selector is in the electronically-assisted firing mode.
 8. The paintball marker of claim 7, further comprising a lever moveable between a first position away from the valve arrangement and a second position that actuates the valve arrangement.
 9. The paintball marker of claim 8, wherein the valve arrangement includes an input valve with a valve stem, wherein the lever moves the valve stem in the second position.
 10. The paintball marker of claim 8, wherein the lever includes a first arm and a second arm.
 11. The paintball marker of claim 10, wherein the first arm is approximately perpendicular to the second arm.
 12. The paintball marker of claim 10, wherein the lever includes a pivotal connection with the receiver between the first arm and the second arm.
 13. The paintball marker of claim 10, wherein the first arm actuates the valve arrangement when the lever moves to the second position.
 14. The paintball marker of claim 8, wherein the trigger includes a cam surface configured to move the lever to the second position responsive to the trigger moving to the firing position when the mode selector is in the mechanical firing mode.
 15. The paintball marker of claim 8, wherein the electronic circuit includes a linear actuator configured to move the lever to the second position to actuate the valve arrangement, wherein the electronic circuit is configured to energize the linear actuator responsive to the trigger moving to the firing position when the mode selector is in the electronically-assisted firing mode.
 16. The paintball marker of claim 15, wherein the linear actuator comprises a solenoid.
 17. The paintball marker of claim 7, wherein the mode selector includes a notch dimensioned to receive a tip extending from the trigger, wherein the notch is aligned with the tip when the mode selector is in the mechanical firing mode such that the tip is in registry with the notch when the trigger moves to the firing position.
 18. The paintball marker of claim 17, wherein the mode selector is further movable to a safety mode, wherein the notch is not aligned with the tip when the mode selector is in the safety mode to block the trigger from moving to the firing position.
 19. The paintball marker of claim 18, further comprising a magnet associated with and movable with the mode selector and a magnetic sensor configured to detect the magnet's position to determine whether the mode selector is in the electronically-assisted firing mode.
 20. A paintball marker comprising: a receiver; a barrel extending from the receiver; a valve arrangement configured to selectively vent gas to propel a projectile out of the barrel; a mode selector movable between a mechanical firing mode and an electronically-assisted firing mode; a trigger movable between a neutral position and a firing position; a lever including a first arm and a second arm, wherein the first arm is moveable between a first position away from the valve arrangement and a second position that actuates the valve arrangement, wherein the trigger includes a cam surface that acts upon the lever to move the first arm to the second position responsive to the trigger moving to the firing position when the mode selector is in the mechanical firing mode; and an electronic circuit including a linear actuator configured to move the lever to the second position, wherein the electronic circuit is configured to energize the linear actuator responsive to the trigger moving to the firing position when the mode selector is in the electronically-assisted firing mode.
 21. The paintball marker of claim 20, wherein the cam surface acts upon the first arm when the trigger moves to the firing position.
 22. The paintball marker of claim 21, wherein the linear actuator includes a rod that is movable between an extended position and a retracted position, wherein the rod acts on the second arm in the extended position.
 23. The paintball marker of claim 22, wherein the mode selector includes a notch dimensioned to receive a tip extending from the trigger, wherein the notch is aligned with the tip when the mode selector is in the mechanical firing mode such that the tip is in registry with the notch when the trigger moves to the firing position.
 24. The paintball marker of claim 23, wherein the mode selector is further movable to a safety mode, wherein the notch is not aligned with the tip when the mode selector is in the safety mode to block the trigger from moving to the firing position.
 25. The paintball marker of claim 24, further comprising a magnet associated with and movable with the mode selector and a magnetic sensor configured to detect the magnet's position to determine whether the mode selector is in the electronically-assisted firing mode.
 26. A paintball marker comprising: a receiver; a barrel extending from the receiver; a valve arrangement configured to selectively vent gas to propel a projectile out of the barrel; a trigger movable between a neutral position and a firing position; a trigger magnet movable with the trigger; a first magnetic sensor configured to detect movement of the trigger; a mode selector movable between a safe mode and an electronically-assisted firing mode; a mode selector magnet movable with the mode selector; a second magnetic sensor configured to detect the mode selector magnet's position to determine whether the mode selector is in the electronically-assisted firing mode; an electronic circuit configured to actuate launching of a projectile responsive to detection by the first magnetic sensor that the trigger moved to the firing position when the second magnetic sensor detects that the mode selector is in the electronically-assisted firing mode; and wherein the mode selector includes a portion that blocks the trigger from moving to the firing position when the mode selector is in the safe mode.
 27. The paintball marker of claim 26, wherein the mode selector is movable between a safe mode, a mechanical firing mode and an electronically-assisted firing mode, wherein a mechanical launch assembly actuates launching of a projectile when the mode selector is in the mechanical firing mode.
 28. The paintball marker of claim 27, wherein the mode selector includes a second portion that limits a trigger stroke of the trigger in the electronic firing mode to prevent actuation of the mechanical launch assembly when the mode selector is in the electronically-assisted firing mode.
 29. The paintball marker of claim 27, wherein the mode selector is configured to allow a first trigger stroke length when in the mechanical firing mode and a second trigger stroke length when in the electronically-assisted firing mode.
 30. The paintball marker of claim 29, wherein the first trigger stroke length is longer than the second trigger stroke length. 